Allen-Bradley 1756-CN2R B ControlLogix ControlNet Module

The Allen-Bradley 1756-CN2R B serves as a backbone for industrial automation systems requiring robust communication infrastructure. This ControlNet module enables real-time data synchronization between controllers, I/O devices, and HMIs across manufacturing, energy, and process control environments. Its dual-port architecture supports network redundancy, ensuring uninterrupted operation even during cable failures.

This module excels in environments demanding network resilience. We’ve seen automotive plants deploy it for robotic welding cell synchronization, while food processing facilities use it for multi-axis motion control coordination. The dual-port design simplifies daisy-chain topologies without additional switches, reducing cabinet space requirements.

Our inventory includes complementary Rockwell components: 1756-L7X controllers for system cores, 1794-IB16 input modules for field signal acquisition, and 2711-B6C20 touchscreens for HMI integration. For legacy system upgrades, we stock transition cables and adapter kits to maintain backward compatibility with existing DeviceNet infrastructure.